Eight features. One goal: understanding what agrees with you.
Here we show you step by step what Tago can do — and how it works. Every feature grew out of a concrete question we couldn't find answered in any other app.
Scan a barcode in seconds
Hold your iPhone over an EAN or UPC code. Tago fetches nutrition values, ingredients and allergens from the Open Food Facts database — over 3 million products, updated live.
- EAN-13, EAN-8, UPC-A, UPC-E
- Offline cache: scanned once, always available
- Easily add your own products
Photo of your plate — meal recognised
Snap a photo. The AI recognises the ingredients, estimates the portion and delivers calibrated nutrition values. It works for restaurant menus too: photograph the whole menu and every dish is processed individually.
- Image recognition based on Gemini
- Portion adjustable live with a ±10 g stepper
- Restaurant mode for menus
How you really feel
Log stomach ache, tiredness, headaches, skin reactions — with a severity of 1–10 and a timestamp. Days without symptoms automatically count as symptom-free: no tedious “nothing” logging.
- Select several symptoms at once
- Severity scale with duration
- Free-text notes
Hidden patterns made visible
After two weeks, the statistical engine finds links between ingredients and symptoms. With Wilson confidence, median reaction time and multi-trigger detection — no colourful gut-feeling tips, but real data.
- Day-based statistics (90-day window)
- Late-reaction banner (6–12 h later)
- Spurious-signal filter: only patterns with a real data basis
Test your hypothesis, under control.
Leave out a suspect ingredient for 7, 14 or 21 days. Tago freezes your 14-day baseline and compares it with the elimination phase afterwards. A clear verdict: confirmed, ruled out or unclear.
- Baseline frozen at the start
- Compliance tracking via ingredient matching
- Verdict based on drop in severity + frequency
Eating out without flying blind
Photograph the menu once — Tago recognises every dish with nutrition values and allergens. Live portion stepper for your actual plate size. Restaurants are saved for your next visit.
- OCR + AI recognition of the menu
- Allergens visible right away (gluten, egg, lactose, …)
- Your restaurant database grows locally
Connected without double work
Steps, active energy, workouts, weight and water are synced both ways. You track once — no matter where. Optionally, burned calories count towards your daily balance.
- Read: steps, workouts, weight, water
- Write: activities, weight, water
- Native modules for real-time sync
Score 0–100 with reasons
Every product gets an explainable score: nutrient density, additives and your personal intolerances are factored in. No black-box verdict — you see exactly why.
- Inspired by Nutri-Score, but more transparent
- Personalised to your allergens
- Reason visible for every point
Ready to eat better?
Download Tago for free on the App Store. No subscription to start. No ad pressure. Just you and your data.